Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
trung ap » trung cap, trung lap, trung tam
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
toan ban » van ban
ap dung » xay dung, van dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - thanh trung ap dung ((cong ban) or (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung ap dung ((cong ban) OR (cong san)) toan ban*.